openssl, net: remove openssl pre-1.1.1 and libressl support

[alaviss]

Summary

Remove support for OpenSSL older than 3.0, as it has reached EoL and should no longer be used in production.

Since version 1.1.1 is still widely used in LTS distributions such as RHEL 8 or Ubuntu 20.04, support for it is retained, however.

Details

• LibreSSL support is also removed from the wrapper, as it has not been tested and likely no longer works with the latest versions of LibreSSL.
• Removed shims for older OpenSSL from the wrapper. This is a breaking change although the impacts should be light to non-existent.
• Removed unnecessary initialization functions from net , since OpenSSL now automatically initializes the necessary components.
• protTLSv1 is now deprecated as TLSv1.0 is no longer safe, and OpenSSL has deprecated the related procedures.
• openssl111 define has been added to handle statically linking with OpenSSL 1.1.1, since the symbol SSL_get_peer_certificate depended on it.
• CI for M1 macOS has been configured to always use Homebrew-supplied OpenSSL.

[alaviss]

Unfortunately the SSL hacks must stay to shim 1.1 and 3.0, so I brought those back.

[saem]

/merge

[github-actions[bot]]

Merge requested by: @saem

Contents after the first section break of the PR description has been removed and preserved below:

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### Notes for reviewers * This also removes support for the bundled LibreSSL in macOS. The bundled LibreSSL in macOS is [*frozen*](https://developer.apple.com/forums/thread/89051?answerId=267538022#267538022) and never receives updates as Apple want to keep binary compatibility. Apple discourages the use of this library, so we shouldn't use it as well. * As an artifact of using `dlopen` for OpenSSL, this will not work on Apple Silicon devices by default even if `openssl` is installed via Homebrew due to https://github.com/Homebrew/brew/issues/13481.